43487458161 has 32 divisors (see below), whose sum is σ = 68471513088. Its totient is φ = 24024712320.

The previous prime is 43487458139. The next prime is 43487458163. The reversal of 43487458161 is 16185478434.

It is not a de Polignac number, because 43487458161 - 2¹⁰ = 43487457137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43487458163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640150 + ... + 704816.

It is an arithmetic number, because the mean of its divisors is an integer number (2139734784).

Almost surely, 2^43487458161 is an apocalyptic number.

It is an amenable number.

43487458161 is a deficient number, since it is larger than the sum of its proper divisors (24984054927).

43487458161 is a wasteful number, since it uses less digits than its factorization.

43487458161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65741.

The product of its digits is 2580480, while the sum is 51.

The spelling of 43487458161 in words is "forty-three billion, four hundred eighty-seven million, four hundred fifty-eight thousand, one hundred sixty-one".